alias the builder callbacks more easily

lib/middleman.rb

@@ -77,6 +77,9 @@ module Middleman
   end
   
   module CoreExtensions
+    # Add Builder callbacks
+    autoload :Builder,       "middleman/core_extensions/builder"
+    
     # Add Rack::Builder.map support
     autoload :RackMap,       "middleman/core_extensions/rack_map"
     

lib/middleman/base.rb

@@ -29,6 +29,9 @@ module Middleman::Base
 
       app.set :views, "source"
 
+      # Add Builder Callbacks
+      app.register Middleman::CoreExtensions::Builder
+      
       # Add Rack::Builder.map to Sinatra
       app.register Middleman::CoreExtensions::RackMap
 

lib/middleman/builder.rb

@@ -76,6 +76,10 @@ module Middleman
       @@hooks.each do |name, proc|
         instance_eval(&proc)
       end
+      
+      SHARED_SERVER.after_build_callbacks.each do |name, proc|
+        instance_eval(&proc)
+      end
     end
   end
   

lib/middleman/core_extensions/builder.rb

@@ -0,0 +1,20 @@
+module Middleman::CoreExtensions::Builder
+  class << self
+    def registered(app)
+      app.extend ClassMethods
+    end
+  end
+  
+  module ClassMethods
+    # Add a block/proc to be run after features have been setup
+    def after_build(&block)
+      @run_after_build ||= []
+      @run_after_build << block
+    end
+
+    def after_build_callbacks
+      @run_after_build ||= []
+      @run_after_build
+    end
+  end
+end